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If the test attempts to clear doorbell bits that are invalid for the
hardware, then the test will fail. Provide a parameter to specify the
doorbell bits to clear. Set default doorbell bits that work for XEON.
Signed-off-by: Allen Hubbe <[email protected]>
Acked-by: Logan Gunthorpe <[email protected]>
Signed-off-by: Jon Mason <[email protected]>
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Signed-off-by: Allen Hubbe <[email protected]>
Acked-by: Logan Gunthorpe <[email protected]>
Signed-off-by: Jon Mason <[email protected]>
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The __cros_ec_pwm_get_duty() routine was transposing the insize and
outsize fields when calling cros_ec_cmd_xfer_status().
The original code worked without error due to size of the two particular
parameter blocks passed to cros_ec_cmd_xfer_status(), so this change is
not fixing an actual runtime problem, just correcting the calling usage.
Signed-off-by: Nick Vaccaro <[email protected]>
Reviewed-by: Brian Norris <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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When using input clocks with high rates, such as clk81 (166MHz), the
fin_ns = NSEC_PER_SEC / fin_freq can introduce a significant error.
Ex: fin_freq = 166666667, NSEC_PER_SEC = 1000000000
fin_ns = 5,9999999
which is, of course, rounded down to 5. This introduces an error of ~20%
on the period requested from the PWM.
This patch uses ps instead of ns (and 64 bit integers) to perform the
calculation. This should give a good enough precision.
Fixes: 211ed630753d ("pwm: Add support for Meson PWM Controller")
Signed-off-by: Jerome Brunet <[email protected]>
Acked-by: Neil Armstrong <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
squash! pwm: meson: Improve pwm calculation precision
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Export the cached pid / tgid mappings in debugfs tracing saved_tgids file.
This allows user apps to translate the pids from a trace to their respective
thread group.
Example saved_tgids file with pid / tgid values separated by ' ':
# cat saved_tgids
1048 1048
1047 1047
7 7
1049 1047
1054 1047
1053 1047
Link: http://lkml.kernel.org/r/[email protected]
Link: http://lkml.kernel.org/r/20170706040713.unwkumbta5menygi@mikesart-cos
Reviewed-by: Joel Fernandes <[email protected]>
Signed-off-by: Michael Sartain <[email protected]>
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
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... and do *not* grab it in vfs_write_iter().
Fixes: "fs: implement vfs_iter_read using do_iter_read"
Signed-off-by: Al Viro <[email protected]>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains two Netfilter fixes for your net tree,
they are:
1) Fix memleak from netns release path of conntrack protocol trackers,
patch from Liping Zhang.
2) Uninitialized flags field in ebt_log, that results in unpredictable
logging format in ebtables, also from Liping.
====================
Signed-off-by: David S. Miller <[email protected]>
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Latest change in open-lldp code uses bytes 6-11 of perm_addr buffer
as the Ethernet source address for the host TLV packet.
Since our driver does not fill these bytes, they stay at zero and
the open-lldp code ends up sending the TLV packet with zero source
address and the switch drops this packet.
The fix is to initialize these bytes to 0xff. The open-lldp code
considers 0xff:ff:ff:ff:ff:ff as the invalid address and falls back to
use the host's mac address as the Ethernet source address.
Fixes: 3a6a931dfb8e ("net/mlx5e: Support DCBX CEE API")
Signed-off-by: Huy Nguyen <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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Currently it is not possible to build just one .o file inside
a subdirectory, because the subdirectories lack a Makefile.
Add a Makefile to the mlx5 subdirectories.
Fixes: e29341fb3a5b ("net/mlx5: FPGA, Add basic support for Innova")
Signed-off-by: Ilan Tayari <[email protected]>
Reported-by: David Miller <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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Both the ethernet and FPGA portions of MLX5 now require the wq functions,
and we get a link error when CONFIG_MLX5_CORE_EN is disabled:
drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.o: In function `mlx5_fpga_conn_create_cq':
conn.c:(.text+0x10b3): undefined reference to `mlx5_cqwq_create'
conn.c:(.text+0x10c6): undefined reference to `mlx5_cqwq_get_size'
conn.c:(.text+0x12bc): undefined reference to `mlx5_cqwq_destroy'
Build wq.o even if MLX5_CORE_EN is not selected.
Fixes: 537a50574175 ("net/mlx5: FPGA, Add high-speed connection routines")
Reported-by: Arnd Bergmann <[email protected]>
Signed-off-by: Ilan Tayari <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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Fix warnings when building with -Wall:
drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c:313:36: warning: cast to restricted __be32
drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c:314:37: warning: cast to restricted __be32
Fixes: bebb23e6cb02 ("net/mlx5: Accel, Add IPSec acceleration interface")
Reported-by: Or Gerlitz <[email protected]>
Signed-off-by: Ilan Tayari <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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Fix warning when building with -Wall:
drivers/net/ethernet/mellanox/mlx5/core/fpga/core.c:105:5: warning: symbol 'mlx5_fpga_device_brb' was not declared. Should it be static?
Fixes: c43051d72a8d ("net/mlx5: FPGA, Add SBU bypass and reset flows")
Reported-by: Or Gerlitz <[email protected]>
Signed-off-by: Ilan Tayari <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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Fix warnings when building 386 kernel:
>> ERROR: "__udivdi3" [drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.ko] undefined!
Fixes: 2ac9cfe78223 ("net/mlx5e: IPSec, Add Innova IPSec offload TX data path")
Reported-by: kbuild test robot <[email protected]>
Signed-off-by: Ilan Tayari <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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Fix warnings when building with -Wall:
drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c:38:6: warning: symbol 'mlx5_init_reserved_gids' was not declared. Should it be static?
drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c:47:6: warning: symbol 'mlx5_cleanup_reserved_gids' was not declared. Should it be static?
drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c:55:5: warning: symbol 'mlx5_core_reserve_gids' was not declared. Should it be static?
drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c:79:6: warning: symbol 'mlx5_core_unreserve_gids' was not declared. Should it be static?
drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c:92:5: warning: symbol 'mlx5_core_reserved_gid_alloc' was not declared. Should it be static?
drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c:109:6: warning: symbol 'mlx5_core_reserved_gid_free' was not declared. Should it be static?
Fixes: 52ec462eca9b ("net/mlx5: Add reserved-gids support")
Reported-by: Or Gerlitz <[email protected]>
Signed-off-by: Ilan Tayari <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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Just check and advance the errseq_t in the file before returning, and
use an errseq_t based check for writeback errors.
Other internal callers of filemap_* functions are left as-is.
Signed-off-by: Jeff Layton <[email protected]>
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Just check and advance the data errseq_t in struct file before
before returning from fsync on normal files. Internal filemap_*
callers are left as-is.
Reviewed-by: Darrick J. Wong <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jeff Layton <[email protected]>
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Add a call to filemap_report_wb_err at the end of ext4_sync_file. This
will ensure that we check and advance the errseq_t in the file, which
allows us to track and report errors on all open fds when they occur.
Signed-off-by: Jeff Layton <[email protected]>
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Many simple, block-based filesystems use generic_file_fsync as their
fsync operation. Some others (ext* and fat) also call this function
to handle syncing out data.
Switch this code over to use errseq_t based error reporting so that
all of these filesystems get reliable error reporting via fsync,
fdatasync and msync.
Signed-off-by: Jeff Layton <[email protected]>
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This is a very minimal conversion to errseq_t based error tracking
for raw block device access. Just have it use the standard
file_write_and_wait_range call.
Note that there are internal callers that call sync_blockdev
and the like that are not affected by this. They'll continue
to use the AS_EIO/AS_ENOSPC flags for error reporting like
they always have for now.
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jeff Layton <[email protected]>
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Jan Kara's description for this patch is much better than mine, so I'm
quoting it verbatim here:
DAX currently doesn't set errors in the mapping when cache flushing
fails in dax_writeback_mapping_range(). Since this function can get
called only from fsync(2) or sync(2), this is actually as good as it can
currently get since we correctly propagate the error up from
dax_writeback_mapping_range() to filemap_fdatawrite()
However, in the future better writeback error handling will enable us to
properly report these errors on fsync(2) even if there are multiple file
descriptors open against the file or if sync(2) gets called before
fsync(2). So convert DAX to using standard error reporting through the
mapping.
Signed-off-by: Jeff Layton <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-and-tested-by: Ross Zwisler <[email protected]>
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writeback errors
Let's try to make this extra clear for fs authors.
Cc: Jan Kara <[email protected]>
Signed-off-by: Jeff Layton <[email protected]>
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When a writeback error occurs, we want later callers to be able to pick
up that fact when they go to wait on that writeback to complete.
Traditionally, we've used AS_EIO/AS_ENOSPC flags to track that, but
that's problematic since only one "checker" will be informed when an
error occurs.
In later patches, we're going to want to convert many of these callers
to check for errors since a well-defined point in time. For now, ensure
that we can handle both sorts of checks by both setting errors in both
places when there is a writeback failure.
Signed-off-by: Jeff Layton <[email protected]>
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Most filesystems currently use mapping_set_error and
filemap_check_errors for setting and reporting/clearing writeback errors
at the mapping level. filemap_check_errors is indirectly called from
most of the filemap_fdatawait_* functions and from
filemap_write_and_wait*. These functions are called from all sorts of
contexts to wait on writeback to finish -- e.g. mostly in fsync, but
also in truncate calls, getattr, etc.
The non-fsync callers are problematic. We should be reporting writeback
errors during fsync, but many places spread over the tree clear out
errors before they can be properly reported, or report errors at
nonsensical times.
If I get -EIO on a stat() call, there is no reason for me to assume that
it is because some previous writeback failed. The fact that it also
clears out the error such that a subsequent fsync returns 0 is a bug,
and a nasty one since that's potentially silent data corruption.
This patch adds a small bit of new infrastructure for setting and
reporting errors during address_space writeback. While the above was my
original impetus for adding this, I think it's also the case that
current fsync semantics are just problematic for userland. Most
applications that call fsync do so to ensure that the data they wrote
has hit the backing store.
In the case where there are multiple writers to the file at the same
time, this is really hard to determine. The first one to call fsync will
see any stored error, and the rest get back 0. The processes with open
fds may not be associated with one another in any way. They could even
be in different containers, so ensuring coordination between all fsync
callers is not really an option.
One way to remedy this would be to track what file descriptor was used
to dirty the file, but that's rather cumbersome and would likely be
slow. However, there is a simpler way to improve the semantics here
without incurring too much overhead.
This set adds an errseq_t to struct address_space, and a corresponding
one is added to struct file. Writeback errors are recorded in the
mapping's errseq_t, and the one in struct file is used as the "since"
value.
This changes the semantics of the Linux fsync implementation such that
applications can now use it to determine whether there were any
writeback errors since fsync(fd) was last called (or since the file was
opened in the case of fsync having never been called).
Note that those writeback errors may have occurred when writing data
that was dirtied via an entirely different fd, but that's the case now
with the current mapping_set_error/filemap_check_error infrastructure.
This will at least prevent you from getting a false report of success.
The new behavior is still consistent with the POSIX spec, and is more
reliable for application developers. This patch just adds some basic
infrastructure for doing this, and ensures that the f_wb_err "cursor"
is properly set when a file is opened. Later patches will change the
existing code to use this new infrastructure for reporting errors at
fsync time.
Signed-off-by: Jeff Layton <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
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An errseq_t is a way of recording errors in one place, and allowing any
number of "subscribers" to tell whether an error has been set again
since a previous time.
It's implemented as an unsigned 32-bit value that is managed with atomic
operations. The low order bits are designated to hold an error code
(max size of MAX_ERRNO). The upper bits are used as a counter.
The API works with consumers sampling an errseq_t value at a particular
point in time. Later, that value can be used to tell whether new errors
have been set since that time.
Note that there is a 1 in 512k risk of collisions here if new errors
are being recorded frequently, since we have so few bits to use as a
counter. To mitigate this, one bit is used as a flag to tell whether the
value has been sampled since a new value was recorded. That allows
us to avoid bumping the counter if no one has sampled it since it
was last bumped.
Later patches will build on this infrastructure to change how writeback
errors are tracked in the kernel.
Signed-off-by: Jeff Layton <[email protected]>
Reviewed-by: NeilBrown <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
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The -EIO returned here can end up overriding whatever error is marked in
the address space, and be returned at fsync time, even when there is a
more appropriate error stored in the mapping.
Read errors are also sometimes tracked on a per-page level using
PG_error. Suppose we have a read error on a page, and then that page is
subsequently dirtied by overwriting the whole page. Writeback doesn't
clear PG_error, so we can then end up successfully writing back that
page and still return -EIO on fsync.
Worse yet, PG_error is cleared during a sync() syscall, but the -EIO
return from that is silently discarded. Any subsystem that is relying on
PG_error to report errors during fsync can easily lose writeback errors
due to this. All you need is a stray sync() call to wait for writeback
to complete and you've lost the error.
Since the handling of the PG_error flag is somewhat inconsistent across
subsystems, let's just rely on marking the address space when there are
writeback errors. Change the TestClearPageError call to ClearPageError,
and make __filemap_fdatawait_range a void return function.
Signed-off-by: Jeff Layton <[email protected]>
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filemap_write_and_wait{_range} will return an error if writeback
initiation fails, but won't clear errors in the address_space. This is
particularly problematic on DAX, as filemap_fdatawrite* is
effectively synchronous there. Ensure that we clear the AS_EIO/AS_ENOSPC
flags when filemap_fdatawrite* returns an error.
Signed-off-by: Jeff Layton <[email protected]>
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Resetting this flag is almost certainly racy, and will be problematic
with some coming changes.
Make filemap_fdatawait_keep_errors return int, but not clear the flag(s).
Have jbd2 call it instead of filemap_fdatawait and don't attempt to
re-set the error flag if it fails.
Reviewed-by: Jan Kara <[email protected]>
Reviewed-by: Carlos Maiolino <[email protected]>
Signed-off-by: Jeff Layton <[email protected]>
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I noticed on xfs that I could still sometimes get back an error on fsync
on a fd that was opened after the error condition had been cleared.
The problem is that the buffer code sets the write_io_error flag and
then later checks that flag to set the error in the mapping. That flag
perisists for quite a while however. If the file is later opened with
O_TRUNC, the buffers will then be invalidated and the mapping's error
set such that a subsequent fsync will return error. I think this is
incorrect, as there was no writeback between the open and fsync.
Add a new mark_buffer_write_io_error operation that sets the flag and
the error in the mapping at the same time. Replace all calls to
set_buffer_write_io_error with mark_buffer_write_io_error, and remove
the places that check this flag in order to set the error in the
mapping.
This sets the error in the mapping earlier, at the time that it's first
detected.
Signed-off-by: Jeff Layton <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Reviewed-by: Carlos Maiolino <[email protected]>
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ext2 currently does a test+clear of the AS_EIO flag, which is
is problematic for some coming changes.
What we really need to do instead is call filemap_check_errors
in __generic_file_fsync after syncing out the buffers. That
will be sufficient for this case, and help other callers detect
these errors properly as well.
With that, we don't need to twiddle it in ext2.
Suggested-by: Jan Kara <[email protected]>
Signed-off-by: Jeff Layton <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Reviewed-by: Matthew Wilcox <[email protected]>
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Signed-off-by: Jeff Layton <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Reviewed-by: Matthew Wilcox <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
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The error code should be negative. Since this ends up in the default case
anyway, this is harmless, but it's less confusing to negate it. Also,
later patches will require a negative error code here.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Jeff Layton <[email protected]>
Reviewed-by: Ross Zwisler <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Reviewed-by: Matthew Wilcox <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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With gcc 4.1.2:
drivers/ptp/ptp_dte.c: In function ‘dte_write_nco_delta’:
drivers/ptp/ptp_dte.c:105: warning: integer constant is too large for ‘long’ type
drivers/ptp/ptp_dte.c:112: warning: integer constant is too large for ‘long’ type
drivers/ptp/ptp_dte.c:114: warning: integer constant is too large for ‘long’ type
Add the missing "LL" suffix to fix this.
Fixes: 8a56aa107f1e8123 ("ptp: Add a ptp clock driver for Broadcom DTE")
Signed-off-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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to find the correct route entry.
if there are several same route entries with different outgoing net device,
application's socket specifies the oif through setsockopt with
SO_BINDTODEVICE, sctpv6 should choose the route entry whose outgoing net
device is the oif which was specified by socket, set the value of
flowi6_oif to sk->sk_bound_dev_if to make sctp_v6_get_dst to find the
correct route entry.
Signed-off-by: Zheng Li <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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copy_to_user() copies the struct the pointer is pointing to, but the
length check compares against sizeof(pointer) and not sizeof(struct).
On 32-bit the size is probably the same, so it might have worked
accidentally.
Signed-off-by: Matthias Rosenfelder <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Fixes: 6797318e623d ("tcp: md5: add an address prefix for key lookup")
Signed-off-by: Fengguang Wu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Lennert reported a failure to add different mpls encaps in a multipath
route:
$ ip -6 route add 1234::/16 \
nexthop encap mpls 10 via fe80::1 dev ens3 \
nexthop encap mpls 20 via fe80::1 dev ens3
RTNETLINK answers: File exists
The problem is that the duplicate nexthop detection does not compare
lwtunnel configuration. Add it.
Fixes: 19e42e451506 ("ipv6: support for fib route lwtunnel encap attributes")
Signed-off-by: David Ahern <[email protected]>
Reported-by: João Taveira Araújo <[email protected]>
Reported-by: Lennert Buytenhek <[email protected]>
Acked-by: Roopa Prabhu <[email protected]>
Tested-by: Lennert Buytenhek <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The code that detects a failed soft reset of Octeon is comparing the wrong
value against the reset value of the Octeon SLI_SCRATCH_1 register,
resulting in an inability to detect a soft reset failure. Fix it by using
the correct value in the comparison, which is any non-zero value.
Fixes: f21fb3ed364b ("Add support of Cavium Liquidio ethernet adapters")
Fixes: c0eab5b3580a ("liquidio: CN23XX firmware download")
Signed-off-by: Derek Chickles <[email protected]>
Signed-off-by: Satanand Burla <[email protected]>
Signed-off-by: Raghu Vatsavayi <[email protected]>
Signed-off-by: Felix Manlunas <[email protected]>
Reviewed-by: Leon Romanovsky <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Add compatible string to properly handle the PWMs found in the AO domain
of the gxbb (and gxl) family.
Acked-by: Neil Armstrong <[email protected]>
Signed-off-by: Jerome Brunet <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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Vikram reported the following backtrace:
BUG: scheduling while atomic: swapper/7/0/0x00000002
CPU: 7 PID: 0 Comm: swapper/7 Not tainted 4.9.32-perf+ #680
schedule
schedule_hrtimeout_range_clock
schedule_hrtimeout
wait_task_inactive
__kthread_bind_mask
__kthread_bind
__kthread_unpark
kthread_unpark
cpuhp_online_idle
cpu_startup_entry
secondary_start_kernel
He analyzed correctly that a parked cpu hotplug thread of an offlined CPU
was still on the runqueue when the CPU came back online and tried to unpark
it. This causes the thread which invoked kthread_unpark() to call
wait_task_inactive() and subsequently schedule() with preemption disabled.
His proposed workaround was to "make sure" that a parked thread has
scheduled out when the CPU goes offline, so the situation cannot happen.
But that's still wrong because the root cause is not the fact that the
percpu thread is still on the runqueue and neither that preemption is
disabled, which could be simply solved by enabling preemption before
calling kthread_unpark().
The real issue is that the calling thread is the idle task of the upcoming
CPU, which is not supposed to call anything which might sleep. The moron,
who wrote that code, missed completely that kthread_unpark() might end up
in schedule().
The solution is simpler than expected. The thread which controls the
hotplug operation is waiting for the CPU to call complete() on the hotplug
state completion. So the idle task of the upcoming CPU can set its state to
CPUHP_AP_ONLINE_IDLE and invoke complete(). This in turn wakes the control
task on a different CPU, which then can safely do the unpark and kick the
now unparked hotplug thread of the upcoming CPU to complete the bringup to
the final target state.
Control CPU AP
bringup_cpu();
__cpu_up() ------------>
bringup_ap();
bringup_wait_for_ap()
wait_for_completion();
cpuhp_online_idle();
<------------ complete();
unpark(AP->stopper);
unpark(AP->hotplugthread);
while(1)
do_idle();
kick(AP->hotplugthread);
wait_for_completion(); hotplug_thread()
run_online_callbacks();
complete();
Fixes: 8df3e07e7f21 ("cpu/hotplug: Let upcoming cpu bring itself fully up")
Reported-by: Vikram Mulukutla <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Cc: Sebastian Sewior <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Andrew Morton <[email protected]>
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1707042218020.2131@nanos
Signed-off-by: Thomas Gleixner <[email protected]>
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include/linux/i2c is not for client devices. Move the header file to a
more appropriate location.
Signed-off-by: Wolfram Sang <[email protected]>
Acked-by: Daniel Thompson <[email protected]>
Acked-by: Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
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include/linux/i2c is not for client devices.
Move the header file to a more appropriate location.
Signed-off-by: Wolfram Sang <[email protected]>
Acked-by: Daniel Thompson <[email protected]>
Acked-by: Michael Hennerich <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
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Implement the show_options superblock op for bpf as part of a bid to get
rid of s_options and generic_show_options() to make it easier to implement
a context-based mount where the mount options can be passed individually
over a file descriptor.
Signed-off-by: David Howells <[email protected]>
cc: Alexei Starovoitov <[email protected]>
cc: Daniel Borkmann <[email protected]>
cc: [email protected]
Signed-off-by: Al Viro <[email protected]>
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Implement the show_options superblock op for ramfs as part of a bid to get
rid of s_options and generic_show_options() to make it easier to implement
a context-based mount where the mount options can be passed individually
over a file descriptor.
Signed-off-by: David Howells <[email protected]>
Signed-off-by: Al Viro <[email protected]>
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Implement the show_options superblock op for pstore as part of a bid to get
rid of s_options and generic_show_options() to make it easier to implement
a context-based mount where the mount options can be passed individually
over a file descriptor.
Signed-off-by: David Howells <[email protected]>
cc: Kees Cook <[email protected]>
cc: Anton Vorontsov <[email protected]>
cc: Colin Cross <[email protected]>
cc: Tony Luck <[email protected]>
Signed-off-by: Al Viro <[email protected]>
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Implement the show_options superblock op for omfs as part of a bid to get
rid of s_options and generic_show_options() to make it easier to implement
a context-based mount where the mount options can be passed individually
over a file descriptor.
Note that the uid and gid should possibly be displayed relative to the
viewer's user namespace.
Signed-off-by: David Howells <[email protected]>
cc: Bob Copeland <[email protected]>
cc: [email protected]
Signed-off-by: Al Viro <[email protected]>
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Implement the show_options superblock op for hugetlbfs as part of a bid to
get rid of s_options and generic_show_options() to make it easier to
implement a context-based mount where the mount options can be passed
individually over a file descriptor.
Note that the uid and gid should possibly be displayed relative to the
viewer's user namespace.
Signed-off-by: David Howells <[email protected]>
cc: Nadia Yvette Chambers <[email protected]>
Signed-off-by: Al Viro <[email protected]>
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btrfs, debugfs, reiserfs and tracefs call save_mount_options() and reiserfs
calls replace_mount_options(), but they then implement their own
->show_options() methods and don't touch s_options, rendering the saved
options unnecessary. I'm trying to eliminate s_options to make it easier
to implement a context-based mount where the mount options can be passed
individually over a file descriptor.
Remove the calls to save/replace_mount_options() call in these cases.
Signed-off-by: David Howells <[email protected]>
cc: Chris Mason <[email protected]>
cc: Greg Kroah-Hartman <[email protected]>
cc: Steven Rostedt <[email protected]>
cc: [email protected]
cc: [email protected]
Signed-off-by: Al Viro <[email protected]>
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